Input validation vulnerability in Upcasted S3 Offload – AWS S3, Digital Ocean Spaces, Backblaze, Minio and more 3.0.3

The plugin “Upcasted S3 Offload” for WordPress has a security issue called Stored Cross-Site Scripting. This means that attackers with certain levels of access can inject harmful code into website pages, which will run when a user visits that page. This vulnerability affects all versions of the plugin up to 3.0.3 and is caused by not properly filtering and sanitizing input and output.

Detected in:

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Version compare shows which versions have a vulnerability. For example: >= 2.2.8 <= 2.2.21 means:

> from 2.2.8
= including 2.2.8 & 2.2.21
< to 2.2.21

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